Shock-absorber for motor-vehicles.



A. LOOMIS. SHOCK ABSORBER FOR MOTOR VEHICLES.

APPLICATION TILED MAR. 19 1908.

982,282. Patented J an. 24, 1911.

2 SHEET" Q 1.

1&9] 3 v Lbiineqs ses 9 f 20 22 I Inventgr ji 14 gg 2% 6 7 I W 7 A. LOOMIS. 11001: ABSORBER r03 MOTOR VBHIGLES.

APPLICATION FILED MAEJQ, 190B. v

' Patanted Jan. 24, 1911.

982,282. v aims-spun.

[that in which once 13 oilered PACKARD MOT-QR CAR MICHId-AN.

assess.

Specification of Letters Patent.

sa ar es @PhTENT onricn.

.il'iLEl l LQC'MIEQOF BETROIT, MICHIGAN, ASSIGNOR, BY

MESNE ASSIGNMENTS, TO

COMPANY, OF DETROIT, MICHIGAN, A CORPORATION OF SHOCK-ABSORBER FOR MOTOR-VEHICLES.

Patented Jan. 24, 1911.

Application filed March 19, 1908. Serial No. 422,041.

To all who-m it may concern:

Be it known thatl, ALLEN Looms, a citizcn of the United States, and resident of Detroit, lVayne count-y, State of ldichigan, have invented certain. new and useful Iniprovements in Shock-Absorbers for Motor- Vcliicles, of which the following is a specification.

The present invention relates to improvements in devices for relieving tl1e shock due to the vibration between the body and axle of a vehicle when moving over rough or uneven surfaces and is particularly adapted for use with motor vehicles. p

Various dcvicesliave been proposed for effecting the general object of this invention, such. devices being of two types or in devices of one character means are proied for checking the vibration of the vee body both during the depressions thereof 'or the movement which places the we iicie springs under tension, and during the return movement. i

The present invention relates however to the other of shock absorbers, namely, very little additional resistto the movements tending to carry the axle and body of the vehicle to ward each other, but which retard the oppositci moveinent, or that which returns the parts to normal position.

of the cod walls in the accompanyinf, drawings, Figure 1 is an elevation partly in section on the line vE of I 'ig, 2, of an embodiment of the in vention; 2 is asectional View on the line 2&2 of Fi 1; and Fig. 3 is a View simi- "lar to Fig: '1' illustrating another form of.

the invention. I Referring to the drawings, 1 designates a portion of a side bar of a vehicle frame, 2 an axle of the vehicle and 3 a portion of one of the springs which are interposed between the axle and the frame and support the latter. p

A drum or casing '-l is rigidly secured to an arm 5 which is pivotally connected with the tramorbar 1 by a bolt 6. As shown, the bar 5" enlarged 'atits outer end and forms one of the drum or casing, the other end wall being shown as formed in tegral with the peripheral wall of the cast ing which is secured to the arm 5 by bolts 7. shaft, 8 is jOzZlZlttlOi'l in bearings ll. 10, can riedby the end walls of the drum or casing i said. sliaf' being of such length as to pro- -by a suitable key ject bcyond the bearing 9 and to this projectingend of said shaft is rigidly connected, or spline, one end of an arm 11, the other end of which is pivotally connected with'the axle as by means or a bolt 12 engaging a suitable car or plate carried by thespring clip 13.

' ll ithin the drum or casing 4 and extending about the shaft Sis a split ring 14, one end of which is connected with or Supported by the outer end of an arm 19 carriedby a sleeve 20 loosely mounted on the shaft 8.

V The other end of the split ring 1s connected -w1th or supported by an arm 21 carried by a sleeve rigidly connected with the shaft 8, so as to turn therewith, by a suitable spline or key. The ring 14 is adapted to bear against the inner surface of the peripheral wall of the drum or casing 4 and is normally helo in close contact with that wall by a coiled spring 23 arranged between the arms 19, 21, as shown in Fig. 1. If preferred the ring may be faced with a layer of felt 24 or other suitable friction material.

As shown in Fig. 1 the arms 19 and 21 are provided with flanges 19 and 21 at their ends respectively, against which the corresponding ends of the split ring 1% bear. The ends of the split ring are provided with flanges 14: againstwhich the ends of the strip or ring of frictional material 94 abut. When the parts are so constructed, the ends of the split ring 14 need not be attached to the arms I!) and 21, as it is confined in all directions and must retain its proper posi; tion in the casing. This construction and arrangement preferred as it permits of ready replacement of the split riug and the material 2% when they become worn, and l'llCSl arc the only parts which are subject to any material wear. 7

When the axle and frame piece 1 are caused to approach each other, the arms ll and will be rocked about their respective pivotal connections with said parts and thereby a slight turning movement imparted both to the drum or casing ti and the shaft 8. As the arm 21 is rigidly connected with the shaft such movement will act to carry said arm in the direction of the arrow, Fig. 1. to ward the arm 19, thereby drawing the split ring Ll from close cmltactwitli the drum so that very little resistance is offered by said ringto such relative movement of the frame and axle. As soon, however, as the parts start to return to normal osition under the influence of the spring 3, t e drum and shaft will be rocked in the opposite direction and underthe action of. the spring 23 the split ring or friction band will be held in close contact with the drum and thus afi'ord con siderable resistance and materially retard the. movement. Referring to Fig. 3, tlie;casing 4 is rovided wlth a'r'igid arm or bracket 5, w llCh is connected withthe frame 1 andthe arm The-operation ofthe absorber shown in 11 15 connected with the spring or axle by a link 11"; As shown in this figure, the split ring 14 is secured to the arm's 19 and 21 instead of being removably mounted thereon.

F '3 is substantially the same as the opera-.

. tion of that shown in Figs. L and 2.

The working parts of the device being an mclosed within a drunLor casing which offectually excludes dust, the device may be sily lubricated and is not liable to have its parts dmarranged.

While the embodiments of the invention illustrated are those at present preferred, it

willbeevident that there may be. variation or-modlficatlon of the details herein shown Y 4 without departing from the'spirit of the invention, For instance, instead of making the spring 23 in the form illustrated, the

same results would be obtained if the spring .werecolled about the shaftor sleeves thereon and its ends caused to bear against the arms 19, 21. It will also be evident that the arm 5 or the casing 4 may be connected to any convenient part of the frame or body of the vehicle and that the arm 11 may be connectedto any .part which is movable with the axle relatively 'to the body.

l lavlng described my invention what I claim and desire to secure by Letters Pat- 1. In an apparatus for cushioning the relatlve movements of a vehicle axle and body, the combination of a friction surface connected with one of the relativelymovable parts, a shaft connected with the other of said movable parts and arranged concentric the combination of a cylindrical casing. a

shaft concentric withthe casing, a pair of arms extending radially from said shaft towardthe caslng, one of said arms being connected with the shaft-,and the other free thereon, and a split ring removably connected with said arms and arranged within the casing, for the purpose described.

3. In an apparatus for cushioning the relative movements of a vehicle axle and body, the combination of a cylindrical casing, a shaft concentric with the casing, a pair of arms extending. radially from said shaft toward the casing, one of said arms being 7 connected with the shaft and the other free thereon, and a split ring rcmovably connccted with said arms, and arranged within the casing, said arms having flanges-at their ends against which the ends of said split ring abut, for the purpose described.

4. In an apparatus for cushioning the relative movements of a vehicle axle and body, the combinationQ-of a cylindrical casing, a shaft concentric. with the casing, a air of arms extending "radially from sai shaft toward thecas ng, one of said arms' being connected with the shaft. and the other free thereon, and' :1 split ring removably connected with saidarms and arrangedwithin the. casing, said split ring being provided with a facing of frictional material and having flanges at its ends against which the ends of said frictional material abut, for the purpose described.

5. In an apparatus for cushioning the relative movements of .a' vehicle axle and body,

the combination with the body, of a cylin drical casingconnected with the body, a shaft concentric with said casing and haying an arm connected with the axle, a pan: of arms within the casing,- one of whlch isfreely mountedqon the shaft and the other rigidly connected with the shaft, a split ring having its ends supported on said arms and a spring tending to move said arms apart, for the purpose. described.

6. In an apparatus for cushioning the relative movements of a vehicle axle and body frame. the combination-of two arms ivotally connected respectivel with the ax e and body frame, a shaft rigi ly connected withone of, said arms, a frictio'nsurfa'ce carried by the other arm and extending concentric with the shaft, and a split ring adapted to contact with the friction surface and havin one end connected rigidly with the shaft an its other end connected witha member sup-' ported by but free to turn on the shaft, for the purpose described. l

7. In an apparatus for cushioning the relative movements of a vehicle axle and,- bo dy frame, the combination of two arms pivotally connected respectively with the axle and body frame, a shaft rigidly connected with one of said arms, a friction surface carried by the other arm and extending concentric with the shaft, a split ring adapted to contact with the friction surface and having one of its ends rigidly connected with the shaft and its other end supported by means free to turn on the shaft, and a spring acting to separate the ends of the ring, for the purpose described.

'30 to said arms ceases 81in an apparatus for cushioningthc relative niovcmenis of a vehicle axle and body frame, the combination of a casing pivotally supported on one of suid members, a shaftjournaled in hearings in the cas.ing,an arm rigidly connected at one end with the shaft and having; its other end pivotally connected with the other member of the vehicle, 1e Within the casing and adapted to contact with a Willi thereof, one end of the ring be ing connected with an arm loosely mounted on the shaft and be other end of the ring; being connected. will an arm adapted '0 turn with the shaft, for the purpose dcscrihed. 9. In an apparatus for cushioningthe relative movements of it vehicle axle and body-frame, the combination. of two arms pivotally connected respectively with the axle and vehicle body, a drum or casing carried hyone of said arms, shaft joiirnaled in hearings, in the end Walls of the casing and connected with the other of said arms to be rocked as the firm turns onits pivot an arm loosely mounted on the shaftwithin tl'ie'casing", second arm Within the and secured to the shaft to turn the and a split ring" having its ends connected within the casing and oriented to contact with the peripheral Wall of: the casing",substantially as and for, the purpose described. 7

10. In an apparatus for cushioning the relative movements vehicle axle and hotly frame, the coznlnnation of two arms pivotully connected axle and vehiclel )dy, s drum or casing curricr by one of said arms, a shaft iournslcd 43 in hearings in the end walls of the casing "and connected with the other of said lll'll'l-S "co he rocked as the arm turns on its pivoi, an arm loosely mounted ontheshaft within the cusingzfa second arm within the casing. rind L'JI 45 secured to the shaftto turn therewith, a

split ring adapted to contuci with a \vnlloi ihe drum crossing and having its ends connected with said arms Within the casing, and a spring acting to sepurute the ends of the ring. substantially described. I

11. The combination. with two parts adapt ed to move toward and. from each other, of means for retarding such movement in one rlircction comprisingudrum like casing pivotuliy supported by one ofthe members, a slmft-journeled in hearings carried by the casing, an arm-rigidly connected to the sheik drum or and a split ring arrangedrespectively with the and for the purpose the casing will be relatively adjusted and the split ring moved from the casing and when the relative movement of the shaft and drum is reversed the rin will closel engage the drum.

153. relative movement of a vehicle axle and body, the combination with two jointed members secured to the vehicle axle and body respectively, one of the members being provided with a cylindrical friction surface, it friction ring cooperating therewith, an arm on one of said j ointed members bearing against one end of the ring and a freely movable arm bearing against the opposite end of the ring, and a spring constructed to throw the ring into engagement with the coiipcrating friction surface.

13. In an apparatus for cushioning the relative movement of a vehicle axle and holy, he combination with two members connected by a pivot; pin and secured to the vehicle [axle and body respectively, :1 friction drum secured to one of the members, :1 splitfriction ring cooperating therewith. one end of the ring being secured to one of the jointed members, and an arm pivotally mounted on the pivot pin and engaging the other end of the ring.

M in an apparatus for ciishioning the relative movement of a vehicle axle and body, the combination With two members connected by i}, pivotpin rigidly secured to one of lhe members, said members being secured to (he vehicle axle and body respectively, a friction drum secured to one of the members, a split friction ring coilperating therewith,- an arm rigidly secured to the pivot pin and engaging one endof the split ringend an arm pivotally mounted on the pivot pin and engaging the other end of the ring.

In testimony whereof-1 affix my signature in presence of two Wiiuesses.

CLARA l. DALE, RAYMOND KAIN.

In an apparatus for cushioning the 

